One among the 4 students Mary, Ingrid, Chito, and Chad did not do his/her homework. Their teacher asked them and their responses were: Ingrid:"It isn't me!" Mary: "It is Chad!" Chito: "It is Mary!" Chad: "Mary is lying!"

One among the 4 students Mary, Ingrid, Chito, and Chad did not do his/her homework. Their teacher asked them and their responses were: Ingrid:"It isn't me!" Mary: "It is Chad!" Chito: "It is Mary!" Chad: "Mary is lying!"

ENGR.ECONOMIC ANALYSIS

14th Edition

ISBN:9780190931919

Author:NEWNAN

Publisher:NEWNAN

Chapter1: Making Economics Decisions

Section: Chapter Questions

Problem 1QTC

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Question

One among the 4 students Mary, Ingrid, Chito, and Chad did not do his/her
homework. Their teacher asked them and their responses were:
Ingrid:"It isn't me!"
Mary: "It is Chad!"
Chito: "It is Mary!"
Chad: "Mary is lying!"
If only 1 student was telling the truth, who did not do his or her homework?

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